/*
 * Copyright (C) 2012 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.Helpers.copyToList;
import static com.google.common.collect.testing.Helpers.copyToSet;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES;
import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.SetMultimap;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.MapFeature;

import java.util.List;
import java.util.Map.Entry;
import java.util.Set;

import org.junit.Ignore;

/**
 * Tests for {@link SetMultimap#replaceValues}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
public class SetMultimapPutTester<K, V> extends AbstractMultimapTester<K, V, SetMultimap<K, V>>
{
    // Tests for non-duplicate values are in MultimapPutTester

    @MapFeature.Require(SUPPORTS_PUT)
    @CollectionSize.Require(absent = ZERO)
    public void testPutDuplicateValuePreservesSize()
    {
        assertFalse(multimap().put(k0(), v0()));
        assertEquals(getNumElements(), multimap().size());
    }

    @MapFeature.Require(SUPPORTS_PUT)
    public void testPutDuplicateValue()
    {
        List<Entry<K, V>> entries = copyToList(multimap().entries());

        for (Entry<K, V> entry : entries)
        {
            resetContainer();
            K k = entry.getKey();
            V v = entry.getValue();

            Set<V> values = multimap().get(k);
            Set<V> expectedValues = copyToSet(values);

            assertFalse(multimap().put(k, v));
            assertEquals(expectedValues, values);
            assertGet(k, expectedValues);
        }
    }

    @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
    @CollectionSize.Require(absent = ZERO)
    public void testPutDuplicateValue_null()
    {
        initMultimapWithNullValue();
        assertFalse(multimap().put(getKeyForNullValue(), null));
        expectContents(createArrayWithNullValue());
    }
}
